import random
from PIL import Image, ImageDraw, ImageFont, ImageFilter
from io import BytesIO
import base64


def check_code(width=120, height=30, char_length=4, font_file=r'E:\Projects\Python\OpenDjango\apps\app_tempapi\static\font\kumo.ttf', font_size=28):
    code = []
    img = Image.new(mode='RGB', size=(width, height), color=(255, 255, 255))
    draw = ImageDraw.Draw(img, mode='RGB')

    def rndChar():
        """
        生成随机字母
        :return:
        """
        return chr(random.randint(65, 90))

    def rndColor():
        """
        生成随机颜色
        :return:
        """
        return (random.randint(0, 255), random.randint(10, 255), random.randint(64, 255))

    # 写文字
    font = ImageFont.truetype(font_file, font_size)
    for i in range(char_length):
        char = rndChar()
        code.append(char)
        h = random.randint(0, 4)
        draw.text([i * width / char_length, h], char, font=font, fill=rndColor())

    # 写干扰点
    for i in range(40):
        draw.point([random.randint(0, width), random.randint(0, height)], fill=rndColor())

    # 写干扰圆圈
    # for i in range(40):
    #     draw.point([random.randint(0, width), random.randint(0, height)], fill=rndColor())
    #     x = random.randint(0, width)
    #     y = random.randint(0, height)
    #     draw.arc((x, y, x + 4, y + 4), 0, 90, fill=rndColor())

    # 画干扰线
    # for i in range(5):
    #     x1 = random.randint(0, width)
    #     y1 = random.randint(0, height)
    #     x2 = random.randint(0, width)
    #     y2 = random.randint(0, height)
    #
    #     draw.line((x1, y1, x2, y2), fill=rndColor())

    img = img.filter(ImageFilter.EDGE_ENHANCE_MORE)
    return img, ''.join(code)


def image_to_base64(image):
    # 创建一个BytesIO对象
    buffer = BytesIO()

    # 将Image对象保存到BytesIO对象中
    image.save(buffer, format='PNG')  # 可以根据需要更改格式，如JPEG

    # 获取BytesIO对象的内容
    img_str = buffer.getvalue()

    # 对图片字节进行Base64编码
    img_base64 = base64.b64encode(img_str)

    # 将Base64编码结果转换为字符串
    img_base64_str = img_base64.decode('utf-8')

    # 返回Base64编码的字符串
    return f'data:image/png;base64,{img_base64_str}'


if __name__ == '__main__':
    img, code_string = check_code()


